[linux-audio-user] How to check if I have midi connection?

Sorry about this extremely naive question, but since this is my first time trying to get linux to be a DAW I stumble onto some problems of course. And my know-how is somewhat limited unfortunately. My staudio c-port (envy 24 based 8 channel card analogue + 2 channel digital from www.staudio.com with built in midi-interface) works as far as audio goes now, but I can't seem to get anything out of the midiports even though it seems to be properly recognized. Alsa Patch bay gives me a: Rawmidi: 0 - Hoontech SoundTrack Audio DSP24 MPU-401 entry at least (actually 2 - one for each midi port), but no matter which I choose in rosegarden or any other app, I get no signal in the displays. How do I find out if it's working, and how do I troubleshoot. If this is well documented somewhere and comprehensible for semidummies, I'd be happy to receive a link! Best regards Ketil